Billie's first ET interview occurred in 1996, when she was only 3 years old. During ET’s interview with Carrie, the proud mom knew how badly her little girl wanted "to be on TV," and asked the ET cameras to ask her a few questions just to make her day.
In 1999, Carrie took Billie to a charity event that partnered with the beloved Nickelodeon animated series Rugrats, just so her little girl could hang out with costumed performers dressed up as her favorite Rugrats characters Phil and Lil DeVille, Chucky Finster and Tommy Pickles.
"Oh, it's [like seeing] The Beatles for her," Carrie said. "Phil and Lil are the Lennon and McCartney for a 6-year-old."
One year after the charity event, Debbie joined the voice cast on Rugrats, playing Lulu Pickles, and remained with the show until its end in 2004.
In 2014, as Carrie was in the midst of reprising her role as Princess Leia in Star Wars: The Force Awakens, she sat down for an interview alongside her daughter, who also appeared in the blockbuster sci-fi epic as resistance fighter Lieutenant Connix. Carrie revealed that Billie wasn't always a Star Wars fan.
"She actually didn't like Star Wars when I showed it to her when she was a child," she recounted. "She said it was too loud."
Debbie joined Carrie and Billie for the touching joint interview, and the proud grandma had nothing but praise for her talented granddaughter, sharing, "She's quite beautiful… She's very talented and works really hard."
When The Force Awakens premiered in December 2015, ET was on the red carpet and got a look at the adorable banter that seemed to be a staple between Carrie and Billie.
"My first Star Wars memory was me kicking and screaming, because she was begging me to watch it," Billie told ET's Cameron Mathison. "I was like 4 years old."
"Do I seem like a beggar?" Carrie interrupted. "They did not hire me because I was a beggar."
"She begged me to watch it," Billie countered. "I obliged."
"She was 6!" Carrie insisted, as her daughter bickered back, "I was like 4!"
ET also visited Billie on the set of the Fox horror dramedy, Scream Queens, back in 2015, where the young star admitted, "I wish I played a young Princess Leia!," referring to Internet rumors claiming she was playing her mom's iconic character in a flashback.
Billie went on to say that she even got a chance to practice her Princess Leia impression on the Scream Queens set.
"[Yesterday] I was wearing a hooded robe, so I was doing the, 'Help me, Obi Wan Konobi, you're my only hope' [scene]," she recalled.
When Scream Queens premiered in fall 2015, ET caught up with Billie once again, where she opened up about the advice her mom had given her over the years.
"Just to like try to remain yourself and be true to yourself and like be nice to everybody," she said, before admitting that her mom's words would likely be a bit different. "She would say that's too cheesy. She'd probably have something wittier to say. Sorry mom!"
"She missed her daughter and wanted to very much be with her," Todd said. "She had been very strong the last several days. [There was] enormous stress on her, obviously. And this morning she said those words to me and 15 minutes later she had a stroke and virtually left." Watch the video below to hear more.